DE2133284C3 - Verfahren zum Weichnitrieren von Stahl und Gußeisen - Google Patents
Verfahren zum Weichnitrieren von Stahl und GußeisenInfo
- Publication number
- DE2133284C3 DE2133284C3 DE2133284A DE2133284A DE2133284C3 DE 2133284 C3 DE2133284 C3 DE 2133284C3 DE 2133284 A DE2133284 A DE 2133284A DE 2133284 A DE2133284 A DE 2133284A DE 2133284 C3 DE2133284 C3 DE 2133284C3
- Authority
- DE
- Germany
- Prior art keywords
- cast iron
- ammonia
- soft nitriding
- gas
- nitriding steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000005121 nitriding Methods 0.000 title claims description 12
- 229910001018 Cast iron Inorganic materials 0.000 title claims description 5
- 229910000831 Steel Inorganic materials 0.000 title claims description 5
- 239000010959 steel Substances 0.000 title claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 15
- 229910021529 ammonia Inorganic materials 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000010494 dissociation reaction Methods 0.000 claims description 4
- 230000005593 dissociations Effects 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 7
- 238000005256 carbonitriding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO6386470 | 1970-07-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2133284A1 DE2133284A1 (de) | 1972-02-24 |
| DE2133284B2 DE2133284B2 (de) | 1975-04-24 |
| DE2133284C3 true DE2133284C3 (de) | 1975-11-27 |
Family
ID=20087940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2133284A Expired DE2133284C3 (de) | 1970-07-09 | 1971-07-05 | Verfahren zum Weichnitrieren von Stahl und Gußeisen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3705058A (index.php) |
| DE (1) | DE2133284C3 (index.php) |
| FR (1) | FR2098281B1 (index.php) |
| GB (1) | GB1351162A (index.php) |
| HU (1) | HU163105B (index.php) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1471880A (en) * | 1973-10-26 | 1977-04-27 | Air Prod & Chem | Furnace atmosphere for the heat treatment of ferrous metal |
| LU71534A1 (index.php) * | 1973-12-21 | 1975-06-17 | ||
| US4108693A (en) * | 1974-12-19 | 1978-08-22 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for the heat-treatment of steel and for the control of said treatment |
| US4049473A (en) * | 1976-03-11 | 1977-09-20 | Airco, Inc. | Methods for carburizing steel parts |
| US4366008A (en) * | 1979-02-09 | 1982-12-28 | Kabushiki Kaisha Fujikoshi | Method for hardening steel |
| JP4500708B2 (ja) * | 2005-02-25 | 2010-07-14 | 住友金属工業株式会社 | 非調質鋼軟窒化処理部品 |
| JP6217840B2 (ja) * | 2014-03-13 | 2017-10-25 | 新日鐵住金株式会社 | 窒化処理方法、及び、窒化部品の製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB395337A (en) * | 1930-11-01 | 1933-07-13 | Krupp Ag | Improvements in processes for hardening iron, steel, and cast iron, alloys by nitrogenising |
-
1971
- 1971-07-05 DE DE2133284A patent/DE2133284C3/de not_active Expired
- 1971-07-07 US US160523A patent/US3705058A/en not_active Expired - Lifetime
- 1971-07-08 FR FR7125038A patent/FR2098281B1/fr not_active Expired
- 1971-07-09 HU HUFA893A patent/HU163105B/hu unknown
- 1971-07-09 GB GB3242871A patent/GB1351162A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1351162A (en) | 1974-04-24 |
| HU163105B (index.php) | 1973-06-28 |
| US3705058A (en) | 1972-12-05 |
| DE2133284B2 (de) | 1975-04-24 |
| DE2133284A1 (de) | 1972-02-24 |
| FR2098281A1 (index.php) | 1972-03-10 |
| FR2098281B1 (index.php) | 1975-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |